Rare earth complexes synthesis

Figure 2.30 Representation of the asymmetric unit of [Nd(L )4(H20)][(TTF—CH=CH—Py+)] 2-The radical cation donors are drawn as balls and sticks the paramagnetic anionic coordination complexes of Nd(III) are drawn as capped sticks [23d], (Reprinted with permission from F. Pointillart, O. Maury, Y. Fe Gal, S. Golhen, O. Cador and F. Ouahab, 4-(2-Tetrathiafulvalenyl-ethenyl)pyridine (TTF—CH=CH—py) radical cation salts containing poly(P-diketonate) rare earth complexes synthesis, crystal structure, photoluminescent and magnetic properties, Inorganic Chemistry, 48, 7421-7429, 2009. 2009 American Chemical Society.)...

Q.D. Ling, E.T. Kang, K.G. Neoh, and W. Huang, Synthesis and nearly monochromatic photoluminescence properties of conjugated copolymers containing fluorene and rare earth complexes, Macromolecules, 36 6995-7003, 2003. 

Raman spectroscopy metal in water complexes, 309 Rare earth complexes acetylacetone synthesis, 377 guanidinium, 282 hydroxamic acids, 506 Redox properties bipyridyl metal complexes, 90 Reductive coupling nitrile metal complexes, 265 Resorcinol, 2,4-dinitro-metal complexes, 273 Rhenium complexes acetylacetone, 376 synthesis, 375, 378... 

Edelmann FT (1996) Rare Earth Complexes with Heteroallylic Ligands. 179 113 -148 Edelmann FT (1996) Lanthanide Metallocenes in Homogeneous Catalysis. 179 247-276 Effenhauser CS (1998) Integrated Chip-Based Microcolumn Separation Systems. 194 51 - 82 Ehrfeld W, Hessel V, Lehr H (1998) Microreactors for Chemical Synthesis and Biotechnology -Current Developments and Future Applications. 194 233 - 252 Ekhart CW, see de Raadt A (1997) 187 157-186... 

Figure 4.63 S63 Synthesis of rare earth complexes with Cp tethered functionalised NHC ligands.

Figure 3.6 Structures of (a) [DyL3(H20)3] and (b) [TbL lHiOja] (HL = pivalic acid and HE = 2, 6-dihydoxybenzoic acid) [RE, black O, grey C, white H, omitted]. (Redrawn from the CIF files of M.L. Huang et al, Study on the synthesis and the structures of rare earth complexes with 4-aminobenzoic acid, Huaxue Yanjiu Yu Yingyong (Chinese) (Chemical Research Applications), 18, 245-251, 2006 [30] and T. Glowiak et al., Crystal structure of the isomorphous complexes tetraaquabis(2,6-dihydroxy-benzoato-0)(2,6-dihydroxy-benzoato-0, O)terbium(III) and hohnium(III)dihydrate, Journal of Coordination Chemistry, 48 (4), 477-486, 1999 [43].)...

Huang, M.-L., Liang, F.-P,andYu, K.-B. (2006) Study on the synthesis and the structures of rare earth complexes with 4-aminobenzoic acid. Huaxue Yanjiu Yu Yingyong (Chinese (Chemical. Research Applications), 18, 245-251. 

Wang, Z., Niu, C., Hu, N., and Ni, J. (1993) Synthesis characterization and crystal structure of rare earth complexes with L-proline. Huaxue Xuehao (Acta Chimica Sinica), 51 (3), 257-264. 

In this chapter, we seek to summarize the recent progress in the synthesis, crystal structure, and various physical properties of N-based rare earth complexes. 

To date, different types of rare earth complexes with 2,2 -bipyridine ligands have been reported. For instance. Wood and coworkers reported the synthesis and crystal structure of a series of rare earth complexes RE(9)2(N03)3 [15]. Crystal structures of dimeric Eu(III)-chelated complexes based on/7-methoxybenzoate [16a], 6>- or/7-aminobenzoate [16b], and/7-methylbenzoate [16c] with 9 are well known. Recently, dimeric and polymeric Ln(III) complexes (Ln = La,... 

Figure 4.24 Synthesis of homoleptic sandwich-type double-decker porphyrinato rare earth complexes Ce(TTP)2 and PrH(TTP)2.

The first monomeric porphyrinato rare earth complex was reported in 1974 [49]. However, only a few reports on these systems have appeared in the literature since then. In 1991, Schaverien and Orpent reported the synthesis of the monomeric porphyrinato lutetium complex Lu(OEP)[CH(Si(CH3)2] from the reaction between Lu CH[Si(CH3)3]2 3 and H2OEP in toluene [50]. Eigure 4.33 displays its molecular structure. The complex belongs to the monoclinic system and crystallizes in a space group P2 lc with a = 1.4879(6) nm, 7 = 2.0644(10) nm, c= 1.4161(5) nm, P= 96.38(3)°, V = 4.323(3) nm, andZ = 4. The coordination geometry can be described as square-pyramidal. In the crystal, the porphyrin... 

There are several ways to synthesize the homoleptic bis(phthalocyaninato) rare earth complexes RE(III)(Pc02, Figure 4.35. The simplest way is to heat a mixture of a metal salt and phthalonitrile in a ratio of approximately 1 8 to 280-290 °C followed by chromatographic separation of the product [57]. Alternatively, this cyclic tetramerization method towards RE(III)(Pc02 could be conducted with an organic base such as l,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as a promoter [58]. In addition, a ligand condensation method also plays an important role in the synthesis of homoleptic bis(phthalocyaninato) rare earth complexes. This procedure is based on the reaction of H2PC or Li2(Pc ) with rare earth salts in a solvent with a... 

At the end of this chapter, it should be noted that the research into N-based rare earth complexes is still in its infancy. Much effort is necessary towards the design and synthesis of novel rare earth complexes with novel N-based ligands for practical applications. 

Arndt, S. and Okuda, J. (2005) Cationic alkyl complexes of the rare-earth metals synthesis, structure, and reactivity. Advanced Synthesis and Catalysis, 347, 339. 

Sutter, J.P., Kahn, M.L., Golhen, S. et al. (1998) Synthesis and magnetic behavior of rare-earth complexes with N,0-chelating nitronyl nitroxide triazole ligands example of a [Gd organic radical 2] compound with an 5=9/2 ground state. Chemistry - A European Journal, 4, 571-576. 

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